What about the NSSs?

Thanks,
Alyce

________________________________
From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On Behalf 
Of Eric R Farman
Sent: Friday, June 17, 2011 1:57 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: CLONEBKP: New package at zVM/downloads

FLASHCOPY SYNC is only useful for older (Version 1) FlashCopy hardware.  Modern 
storage subsystems, such as DS8000, will not change their behavior with this 
parameter.  From the FLASHCOPY helpfile:

SYNChronous
    (For FlashCopy Version 1 hardware) tells CP to process the command
    immediately and to wait until the hardware has accepted all parameters,
    all messages from the Enterprise Storage Server(R) (ESS) subsystem have
    been processed, and the FLASHCOPY command completes.

As stated previously, issuing a second FLASHCOPY command while one is in 
progress will result in an error.

The CP QUERY FLASHCOPY HARDWARE command can be used to determine if a FlashCopy 
has completed it's background copy or not, regardless of whether or not it's a 
persistent relationship.

Regards,
           Eric

Eric Farman
z/VM I/O Development
IBM Endicott, NY
(607)429-4958 (tie 620)

From:

Kris Buelens <kris.buel...@gmail.com>

To:

IBMVM@LISTSERV.UARK.EDU

Date:

06/17/2011 04:03 PM

Subject:

Re: CLONEBKP: New package at zVM/downloads

Sent by:

The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU>


________________________________



FLASHCOPY SYNC does not wait until the target disk is copied.  So, you can try 
to launch a second FLASHCOPY while the previous is still busy, and your attempt 
will fail.

2011/6/17 Alan Altmark <alan_altm...@us.ibm.com<mailto:alan_altm...@us.ibm.com>>
On Friday, 06/17/2011 at 01:37 EDT, Scott Rohling
<scott.rohl...@gmail.com<mailto:scott.rohl...@gmail.com>> wrote:
> It will likely fail, with a message that the target is not in the
required
> state and is the target of an existing flashcopy...    until the
background
> copying finishes -- you won't be able to flash to the same target.

This sounds like a good use of the FLASHCOPY SYNCH option.

Alan Altmark

z/VM and Linux on System z Consultant
IBM System Lab Services and Training
ibm.com/systems/services/labservices<http://ibm.com/systems/services/labservices>
office: 607.429.3323
mobile; 607.321.7556
alan_altm...@us.ibm.com<mailto:alan_altm...@us.ibm.com>
IBM Endicott



--
Kris Buelens,
IBM Belgium, VM customer support

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